Bobbin-clutching means for rotatable spindles.



W. E. ALLEN. BOBBIN OLUTGHING MEANS FOR ROTATABLE SPINDLES.

APPLICATION FILED GOT-21,1904.

y I I 4 fig 7 a 1v PATENTED FEB. 28, 1905.

NITED STATES Patented February 23, 1905.

PATENT OFFICE.

WILLIAM E. ALLEN, OF SALEM, lVIASSAOI-IUSEFPS, ASSIGNOR TO SAVVYERSPINDLE COMPANY, A CORPORAIION OF MAlNE.

BOBBIN-{DLUTCHlNG MEANS FOR ROTATABLE SPINDLESI QPEGIFIGATION formingpart of Letters Patent No. 783,664, dated February 28, 1905.

Application filed October 21, 190 Serial No. 229,374;-

Z'!) (all w/tmn it nta/y concern:

Be it known that I, WILLIAM E. ALLEN, a citizen of the United States,and a resident of Salem, county of Essex, State oi Massachusetts,

have invented an Improvement in Bobbin- (llutching Means for RotatableSpindles, of which the following description, in connection with theaccompanying drawings, is a specification, like characters on thedrawings repr l0 senting like parts.

This invention has for its object the production of novel ccntritugallyacting bobbinclutching means for rotatable spinning, twisting, or otherspindles whereby the bobbin will be firmly held upon and rotated withthe spindle.

My present invention is very simple in construction and can be readilyapplied to spindles already in use without dismantling or rc- 2oconstructing the same.

The clutching means in the present embodiment of my invention is appliedto the spindle above the sleeve which connects the whirl and spindle,and hence engages the bobbinchamber at or near the upper portion thereofwhen the bobbin is in position on the spindle.

The various novel ieaturesol my invention will be fully described in thesubjoined specilication, and particularly pointed out in the 0 claimsappended thereto.

Figure l is a vertical sectional view ol a rotatable spindle oi thesleeve-whirl type with one embodiment of my invention applied thereto.Fig. 2 is an enlargrml view, partly in elevation and section, showingthe bobbinclutching means. Fig. 3 is a perspective view of themotion-limiting and retaining device for the clutch members. Fig. 4 isan inner face view of a clutch member; and Fig. is a 4.0 transversesection thereof on the line 5 5, Fig. L. Fig. 6 is a perspective view ofthe clutch member. Fig. 7 is a half elevation and half vertical sectionof another form of my invention. Fig. 8 is a top view of the clutchmenu- 4.5 bers and the retaining device for the same.

The spindle A, having secured thereto the upper end of a dependingsleevea, which sustains the whirl A is of a well-known construction andtechnically termed sleevewhirl. Spinning-spindles of this type are inwidely-extended use.

My present invention is particularly applicable to such spindles, asthey stand with but little additional work in iitting the parts, so

that those mills equipped with such spindles may readily secure theadvantages of a cen trifugally-acting bobbin-clutch without beingrequired to purchase an entirely new spindle outfit.

Referring first to the construction illustrated in Figs. 1 to 6,inclusive, a clutching member is shown separately in Figs. 4: and 6,comprising a thin metallic body 1,transversely convexo-concave andreduced in width and curved slightly inward at its upper end at 2. Fromthe inner concave face extends a short arm 3, having an elongateddownturned extension 4 at its inner end. A number of these clutchingmembers are grouped around the spindle A above and adjacent the upperend of the sleeve a, (see Figs. 1 and 2,) and they are maintained inposition by a retaining device, shown as a collar 5, adapted to beforced tightly upon the spindle and having a depending flange (5,provided with holes 7. (See Fig. 3.) The extensions t are inserted inthe holes 7 from the outside, theshort arms 3 loosely entering saidholes, while the bodies 1 ol the clutching members surround the liange6, and then the flanged collar 5 is forced onto the spindle. Three orfour of the clutching members are very el'licicnt, and, as shown inFigs. 1 and 2, their incurved upper ends 2. overhang the collar 5,'theloose connection between the flange and the clutching membersnn-[hitting the latter to move outward radially by or throughcentrifugal action when the spindle is rotating, while limiting suchmovement and retaining them in place on the spindle. The said members 1engage the walls ot' the chamber 6 ol the bobbin B, Fig. l, and therebyrotate the bobbin with the spindle, the incurved upper endsot' saidmembers pro viding for easy application of the bobbin. To avoid boring adeeper chamber, I prefer to mount a bobbin-rest 8 upon the sleeve a atthe proper height, such rest being conveniently made as a metal ring,adapted to be forced onto the sleeve from its upper end. 1. Thecombination witharotatablespinclle, No machining or toolwork upon thespindle of a sleeve secured thereto and provided with or sleeve isnecessary, as will be manifest from a whirl, centrifugally-actingbobbin-clutching the foregoing description in connection with memberslocated wholly above the sleeve, and 55 5 the drawings. means topositively and loosely connect said In the second form embodying myinven members withthespindle,andlimittheirradial tion some slightmachining is necessary, and movement independently of the sleeve. 1 willnow describe the arrangement illus- 2. Thecombinationwitharotatablespindle, trated in Figs. 7 and 8. The upper end of the ofa sleeve secured thereto and provided with 60 I sleeve 11. is turneddown to leave an annular a whirl, a motion-limiting and retaining deflatshoulder 9, and a disk-like collar 10 is vice rigidly attached to thespindle above the forced onto the spindle above the upper end sleeve,and radially-movable bobbin-clutching of the sleeve. Said collar hasaseries of equimembers loosely connected with and vertidistant radialnotches 11 made therein (see cally sustained by said deviceindependently 65 Fig. 8) to receive hubs 12, formed on the inof thesleeve, to engage and rotate a bobbin ner faces of elongated blade-likeclutching by or through the action of centrifugal force. members 13,pins 14 passing through the hubs 3. The combination with a rotatablespindle, and pivotally connecting the members 13 with of a sleevesecured at its upper end thereto to the collar, the members 13 beingmade wider support the whirl, a series of-symmetrieally- 7 20 than theslots. The members 13 can swing arranged bobbin-clutching members aroundradially on their fulcra 14:, their lower ends the spindle and locatedwholly above the extending down nearly to the shoulder 9 on sleeve,adapted to engage and drive a bobbin the sleeve, and when said membersare pressed by centrifugal action, a collar fast on the inward againstthe cut-away portion of the spindle, and separate loose connections be-75 5 sleeve above the shoulder the outer faces of tween it and theclutching members to verthe clutch members lie substantially flush withtically support and limit radial movement the surface of the sleevebelow the shoulder. thereof.

In order to limit the outward swinging et. The combinationwitharotatable spindle, movement of the clutch members, their upper of asleeve secured at its upper end thereto to 80 3 ends are extended, as at15, above the top of support the whirl, an annular bobbin-rest on thecollar to strike the upper corner theresaid sleeve above the whirl, andradiallyof when the free lower ends of the members movable,centrifugally-acting bobbin-clutchare swungoutward by centrifugalaction. By ing means operatively connected with the slightly incurvingthe upper ends 15 an easy spindle above and adjacent the upper end of 5entrance to the mouth of the bobbin-chamber the sleeve, and verticallysupported wholly is secured. independent of the sleeve.

The bobbin is shown in dotted lines, Fig. 7, 5. The combinationwitharotatable spindle, in position on the spindle and vertically supofradially-movable, centrifu'gally-actingbobported by the bobbin-rest 8.It is to be unbin-clutching members arranged around the 9 4 derstood,however, that in either of the two spindle, and positive pivotalconnections bestructures herein shown the bobbin-rest may tween thespindle and the upper ends of the be omitted if it is desired tobore outthe clutching members, to vertically support the chamber in the bobbinto a greater depth. same and permit them to swing radially on By using abobbin-rest, however. the bobbin said connections. 95 is maintainedalways at the same height on In testimony whereoflhavesigned my name thespindle and without any tendency to split to this specification in thepresence of two subor strain its head by forcing it down onto thescribing witnesses. sleeve. WILLIAM E. ALLEN.

Having fully described myinvention, what \Vitnesses:

JOHN C. EDWARDS,

I claim as new, and desire to secure by Letters Patent, 1s l MARGARET A.DUNN. i

